Pittsburgh-style pizza: is this accurate?

Hi everyone, my review of Beto's in Pittsburgh was just published at Roadfood.com, and I was wondering if there are other places in/outside of Pittsburgh that serve baked sheets of tomato pizza with cold toppings. I called it "Pittsburgh style," only because I couldn't find anything similar here in Slice or elsewhere on the web in my research. Please check out my review here:
http://www.roadfood.com/Restaurant/Review/7835-9291/betos